Yes, it is always best practice to ensure that all your plugins are up to date where possible.
Small WordPress websites can be subject to the same security issues as larger WordPress sites. They run the same software as a much larger website and require the same amount of maintenance to ensure they remain secure, free from hacking.
We can maintain WordPress websites for and perform regular WordPress, theme and plugin updates. Speak with us about a web care plan which will suit the needs of your business and website.